Automobile headlight



J.. A. AYALA.

AUTOMOBILE HEADLIGHT. APPLICATION-FILED JUNE 6,1921.

lA-@73985, Patented Aug. 29, i922.

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INVENTOR wrrN Es'sES l ATTORNEY AUTOMOBILE HEADLGHT.

agences.

Specicaton of Let-ters Patent Patented Aug.. 29,

appicamn sied June e, 192,1.A serial No, 475,36?.

10 @ZZ 107mm ,it muy concer/n Be 1t known 'that l. iironio A YALA, a 'ci'tizen of Venezuela,` residing at Caracas,

y/Ten'e'zuela, have invented new and usetul ,making a turn to the lett and a di'li'erent movement relative to said wheel when the vehicle is making a. turn to the right, thus providing compensation means tor the dit'- erent movements of the trent wheels when the vehicle is making lett and right hand turns.

A further object ot the invention is to provide means tor 'tilting the lamp about a horizontal axis so that the rays oi light may be made to strike the road dilliereut distances from the vehicle.

Figure 1 is an elevation, largely diagrammatic, showing my invention applied to an automobile.

Figure 2 is a diagran'imatic plan view of the invention.

Figure 3 is an enlarged view ot the segmental gear and a double rack bar.

Figure i is a section on line 1 4 of Figure 3.

Figure 5 is a detail view.

Tn these views 1 indicates a part ot the chassis ot an automobile, 2 the steering post and 3 the swinging which forms part ot' the steering mechanism ot the automobile. The headlight 4l is centrally arranged at the front ot the automobile and is pivotally supported between the forks of the upright post 5 which is rotatably supported on the standard 6, said standard being suitably secured to a' part ot the automobile.

A double rack bar 7 is slidably supported in a horizontal position in the bracket 8 which is supported from the frame. This bar is formed with an upper part 9 and a lower part 10, each part being provided with teeth 11 and flat portions 12. A. segmental gear 13 is pivotally mounted to a part of the :trame and this gear is provided with two peripheries, an outer one 14 and an inner one 15, each periphery has halt of its surface toothed and the other halt plain with the teeth on one periphery oppositely arranged with respect to the teeth on the other. One set of teeth is arranged to engage the teeth on part 9 of the rack bar, and the other set the teeth on part 10.

It will thus be seen 'that when the rack bar is moved towards the front of the automobile its teeth will engage the teeth ot the outer periphery so as to move the segmental gear a certain distance and when the rack Abar is moved in an opposite direction its upper row of teeth engaging the teeth on the inner periphery will move the segmental gear a greater distance. This rack bar is connected by link 16 with the arm 3 of the steering mechanism so that the rack bar will be reciprocated when the steering mechan ism is actuated. TheA npwardly extending stem 17 ot the segmental gear is connected by link 1S with a bell crank 19 pivoted to the 'lront part of the frame and the other arm ot this bell crank is connected by a link 2() with an arm 21 on the rotary post 5. Thus the reciprocating movement ot the #rack bar will be transmitted through the segmental gear and through connections with the rotary post to said post so that the lamp will be given a partial rotation about a vertical axis.

As before. stated the different degrees of movement given the segmental gear by the rack bar will cause the lamp toswing in a 'greater -arc in one direction than in the other and this will compensate for the swinging movements of the front wheels when the vehicle is turned to the right and left. This movement oit the various parts will keep the rays ot light in the center of the road in taking turns so that there is no danger of the driver becoming confused owing to one part of the road being better lighted than other parts.

I also provide means for tilting the lamp about its horizontal axis, suc-h means consisting ot a longtitudinally movable rod 22 mounted in the standard 6 and having its upper end connected by link 23 with a bracket 24 on the lower part of the lamp adjacent the rear thereof. The lower end of rod 22 is connected to an arm 25 which is carried vby the rotary shaft 26, arm 25 passing through a slot or opening 27 in s tandarad 6, any desired means may be yranged headlight thereon, means for moving provided for rocking the shaft 26 and this rocking movement Will cause the lamp to tilt upon its horizontal aXis through means of the rod 22 and the link 23, as will be understood.

This arrangement of parts will permit the lamp to be adjusted so that the rays of light.

the samev about a vertical a-Xis when the steering mechanism is actuated, such means including means for compensating for the different degreesv of movement of the front `Wheels turning towards the right and lett.

2. In combination with an automobile and its steering mechanism, a centrally arranged headlight on the automobile, means-tor moving the headlight about a vertical axis When `the steering` mechanism is actuated, such means including' means ttor compensating for the different degrees of movement of the front Wheels in turning tothe right and lett and means for` tilting the lamp about a horizontal axis. i

Y 3. In combination With an automobile and its steering mechanism, a centrally arranged headlight, a double rack bar, means for com* pensating the same by the movement of' the steering mechanism, a segmental gear havingtoothed portions arranged in arcs of circles of diderent diameters, one toothed portion engaging one set of teeth. on the iframes rack bar and the other portion the other set and said toothed portions being oppositely arranged so that When one portion is enga-ging its rack the other portion is out of engagement with its rack and'means Jfor connecting said segmental gear With the vlamp so that the l.movement of the gear Will act to rotate the lamp about a vertical axis.

4. In combination with an automobile and its steering mechanism, a cent-rally arranged headlight, a double rack bar,.means for reciprocating the. same by the movement of the steering mechanism, a segmental gear haring toothed portions arranged in arcs of circles oit different diamenters, one toothed portion engaging one set of teeth on the rack bar and the other portion the other set and said toothed portions being oppositely arranged so that when one portion is engaging its rack the other portion vis out of engagement With its rack and means for connecting said segmental gear with the lamp so that the movement of t-he gear Will act to rotate the lamp about a vertical axis, such means consisting of a bell crank, a link con-k nec-ting the same with the segmental gear and a second gear connec mg the bell crank with a part attached to the lamp.

5. In combination With. an automobile and f ci whs ot dili'eront diameters with one tooth.-

ed portion oppositely arranged with respect` to the other toothed portion, a double rack ha r engaging said segmental gear and a link connecting said rack bar With the steering arm ot the steering mechanism.

In testimony whereof I aliiX my signature.

JOS ANTONIO AYALA. 

